Solve a) 2x2+ x − 4 = 0 and b)x2+ x = 0

1.	Solve a) 2x2+ x − 4 = 0 and b)x2+ x = 0
Answer» a)2 x²+ x − 4 = 0 is x =- 1 -√33 / 4, - 1+√33 / 4and b)x²+ x = 0 isx = 0,- 1. An equationofthe form of ax²+ bx + c = 0 is calledaquadratic equation.

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